CN101122722A - Liquid crystal display - Google Patents

Liquid crystal display Download PDF

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Publication number
CN101122722A
CN101122722A CNA2007101403090A CN200710140309A CN101122722A CN 101122722 A CN101122722 A CN 101122722A CN A2007101403090 A CNA2007101403090 A CN A2007101403090A CN 200710140309 A CN200710140309 A CN 200710140309A CN 101122722 A CN101122722 A CN 101122722A
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China
Prior art keywords
data line
pixel
pixel electrode
drain electrode
coupling part
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Granted
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CNA2007101403090A
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Chinese (zh)
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CN101122722B (en
Inventor
罗惠锡
文盛载
李栢远
李成荣
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Samsung Display Co Ltd
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Samsung Electronics Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1393—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)

Abstract

Provided is a liquid crystal display (LCD) with enhanced display qualities. The LCD includes a first insulating substrate; a gate line disposed on the first insulating substrate and extending in a first direction; first and second data lines insulated from and crossing the gate line, separated from each other, and extending in a second direction; first and second thin film transistors (TFTs) connected to the gate line and the first and second data lines, respectively; first and second subpixel electrodes connected to the first and second TFTs, respectively; and first and second drain electrode connection portions connecting the first and second TFTs to the first and second subpixel electrodes, respectively. The first and second drain electrode connection portions are electrically insulated from each other and together form a substantially rectangular band.

Description

LCD
Technical field
The present invention relates to a kind of display, more particularly, relate to a kind of LCD (LCD).
Background technology
LCD (LCD) is one of the most widely used type in the flat-panel monitor.Usually, LCD comprises a pair of the have display panel of electric field generating electrodes (as pixel electrode and common electrode) and the liquid crystal layer between display panel.In LCD, voltage is applied to the electric field generating electrodes, thereby produces electric field.Therefore, determine the orientation of the liquid crystal molecule of liquid crystal layer, thus the control polarization of incident light.As a result, on LCD, show desired images.
In the LCD of vertical orientated (VA) pattern, when liquid crystal molecule not being applied electric field, liquid crystal molecule is arranged perpendicular to the mode of display panel up and down with its major axis.Because contrast ratio height, the standard visual angle of the LCD of VA pattern are wide, so the LCD of VA pattern is popular.It is the critical angle that brightness changes between 1: 10 o'clock visual angle or the GTG that the standard visual angle refers to contrast ratio.
For the standard visual angle of the LCD that makes the VA pattern broadens, can in the electric field generating electrodes, form otch (cutout), perhaps can on the electric field generating electrodes, form outstanding.Otch or the outstanding vergence direction that can determine liquid crystal molecule.By utilizing the orientation (orientation) of otch or outstanding control liquid crystal molecule, the standard visual angle that can increase the LCD of VA pattern.
Yet the shortcoming of the LCD of VA pattern is to compare with positive observability, and its side observability can be relatively poor.For example, (PVA) among the LCD of pattern, brighter than the image of screen center at the image with otch vertical orientated (patterned vertical alignment) near the image of screen side.Under opposite extreme situations, the luminance difference between the high gray can disappear, and causes image thicken (dull).
In order to overcome this shortcoming, each pixel can be divided into two sub-pixels, and in each sub-pixel, form switchgear.Then, different voltage is applied to each sub-pixel.In other words, different data voltages is applied to a pair of sub-pixel, thereby can represents the brightness expected by the pixel that sub-pixel constitutes.Specifically, if LCD works under low grayscale voltage, then be actually by the sub-pixel that has applied high relatively data voltage and drive LCD.Therefore, should be with the coupling capacitance coupling that is applied with between the pair of data lines of the sub-pixel of high relatively voltage and these relative both sides of sub-pixel, to improve the display quality of LCD.
Summary of the invention
The invention provides a kind of LCD (LCD) with display quality of raising.
To part set forth further feature of the present invention in ensuing description, some will be clearly by describing, and perhaps can learn through enforcement of the present invention.
The invention discloses a kind of LCD, this LCD comprises: first dielectric base; Gate line is positioned on first dielectric base and along first direction and extends; First data line and second data line, with gate line insulation and intersect, first data line and second data line are separated mutually and are extended along second direction.LCD also comprises the first film transistor (TFT) and the 2nd TFT, is connected respectively to the gate line and first data line and second data line; First pixel electrode and second pixel electrode are connected respectively to a TFT and the 2nd TFT; The first drain electrode coupling part and the second drain electrode coupling part are connected to first pixel electrode and second pixel electrode with a TFT and the 2nd TFT respectively.The first drain electrode coupling part and the second drain electrode coupling part electrically insulated from one another, and formation is the band of rectangle substantially together.
The present invention also provides a kind of LCD, and this LCD comprises: first dielectric base; Gate line is positioned on first dielectric base and along first direction and extends; First data line and second data line, with gate line insulation and intersect, first data line and second data line are separated mutually and are extended along second direction; A plurality of pixels.Described a plurality of pixel limits by the intersection of gate line and data line, and each pixel comprises: a TFT and the 2nd TFT are connected respectively to the gate line and first data line and second data line; First pixel electrode is essentially V-arrangement in the zone of pixel, wherein, the bottom of V-arrangement is adjacent to second data line; Second pixel electrode is arranged in the remaining area of described pixel; The drain electrode coupling part for being the form of rectangular band substantially, is connected to first pixel electrode or second pixel electrode with a TFT or the 2nd TFT.Pixel with first kind of first pixel electrode that is connected to first data line can alternately be arranged along first direction and second direction with the pixel with second type of first pixel electrode that is connected to second data line.Should be appreciated that above-mentioned describe, in general terms and following detailed are exemplary and indicative, intention provides further explanation to the present invention for required protection.
Description of drawings
The accompanying drawing that comprises is in order to provide further understanding of the present invention, and accompanying drawing is included in the part that this also constitutes instructions, embodiments of the invention has been shown in the accompanying drawing, and has come together to explain principle of the present invention with the description in the instructions.
Fig. 1 illustrates the synoptic diagram of the pel array of LCD (LCD) according to an exemplary embodiment of the present invention.
Fig. 2 is the equivalent circuit diagram that is included in the pixel among the LCD of Fig. 1.
Fig. 3 is the layout that comprises the following display panel of the A type pixel shown in Fig. 1.
Fig. 4 is the synoptic diagram that the annexation between data line shown in Fig. 3 and the pixel electrode is shown.
Fig. 5 is the layout that is connected to the last display panel of the following display panel shown in Fig. 3.
Fig. 6 is the layout that comprises the LCD of the last display panel shown in the following display panel shown in Fig. 3 and Fig. 5.
Fig. 7 is the layout that comprises the following display panel of the Type B pixel shown in Fig. 1.
Fig. 8 is the synoptic diagram that the annexation between data line shown in Fig. 7 and the pixel electrode is shown.
Fig. 9 is illustrated under the situation of grey scale transformation, the curve map of the luminance difference between the Type B pixel shown in the A type pixel shown in Fig. 1 and Fig. 3 and Fig. 1 and Fig. 7.
Embodiment
Now, come to describe more fully the present invention with reference to the accompanying drawings, exemplary embodiment of the present invention shown in the drawings.Yet the present invention can implement with many different forms, should not be understood that to be limited to the embodiment in this proposition.On the contrary, it will be completely with complete in order to make the disclosure that these embodiment are provided, and design of the present invention is conveyed to those skilled in the art fully.In the accompanying drawings, identical label is represented components identical, therefore, will omit description of them.
It should be understood that, when element or layer be known as another element or layer " on " or " being connected to " another element or when layer, this element or layer can be directly on another element or layer or be directly connected to another element or layer, perhaps also can have intermediary element or middle layer.On the contrary, when element be known as " directly " another element or layer " on " or " being directly connected to " another element or when layer, do not have intermediary element or middle layer.As here using, term " and/or " comprise one or more relevant combination in any of being listd and all combinations.
Although it should be understood that and can use the term first, second, third, etc. to describe different elements, assembly, zone, layer and/or part here, these elements, assembly, zone, layer and/or part are not subjected to the restriction of these terms.These terms only are to be used for an element, assembly, zone, layer or part and another element, assembly, zone, layer or part are made a distinction.Therefore, under the situation that does not break away from instruction of the present invention, first element of discussing below, assembly, zone, layer or part can be named as second element, assembly, zone, layer or part.
Term used herein is only for the purpose of describing specific embodiment, and is not intended to limit the present invention.As used herein, unless context spells out in addition, otherwise singulative also is intended to comprise plural form.It should also be understood that, when using term " to comprise " in this manual and/or when " comprising ", illustrate to have described feature, zone, integral body, step, operation, element and/or assembly, do not exist or additional one or more further features, zone, integral body, step, operation, element, assembly and/or their group but do not get rid of.
For be easy to describe as shown in the drawing element or the relation of feature and other element or feature, but usage space relative terms here, as " .... under ", " in ... below ", " following ", " in ... top ", " top " etc..It should be understood that the space relative terms is intended to comprise the different azimuth of device in using or operating except the orientation that is described in the drawings.For example, if the device in the accompanying drawing is reversed, then be described to " " other element or feature " below " or " under " element will be positioned as subsequently " " other element or feature " top ".Therefore, exemplary term " in ... below " can comprise " in ... top " and " in ... below " two kinds of orientation.Described device can correspondingly be explained space used herein relative descriptors by other location (revolve turn 90 degrees or in other orientation).
Unless otherwise defined, otherwise all terms used herein (comprising technical term and scientific and technical terminology) have the meaning equivalent in meaning with those skilled in the art institute common sense.Will be further understood that, unless clearly definition here, otherwise the term that term for example defines in general dictionary should be interpreted as having in the environment with association area their the corresponding to meaning of the meaning, rather than explains their meaning ideally or too formally.
As the cut-open view of the illustrative examples of desirable embodiment of the present invention embodiments of the invention are described in this reference.Like this, the change of shape of the example that the variation by manufacturing technology and/or tolerance causes for example can appear in expectation.Therefore, embodiments of the invention should not be understood that to be limited to the concrete shape in the zone shown in this, and should comprise the deviation in shape that is for example caused by manufacturing.For example, illustrate or be described as smooth zone and can have coarse and/or nonlinear characteristic usually.And, but the acute angle rounding that illustrates.Therefore, zone illustrated in the accompanying drawings is actually schematically, and their shape is not intended to illustrate the accurate shape in zone, also is not intended to limit the scope of the invention.
Below, describe LCD (LCD) with reference to the accompanying drawings in detail according to exemplary embodiment of the present invention.
Fig. 1 illustrates the synoptic diagram of pel array according to an exemplary embodiment of the present invention.Fig. 2 is the equivalent circuit diagram of the pixel among the LCD that is included among Fig. 1.
LCD according to present embodiment comprises the liquid crystal panel assembly, is connected to the signal controller of the gate drivers and the data driver of liquid crystal panel assembly, the grayscale voltage generator that is connected to data driver and control gate driver and data driver.
The liquid crystal panel assembly comprises many display signal lines and a plurality of pixel PX, and a plurality of pixel PX are connected to display signal line also basically by matrix arrangements.The liquid crystal panel assembly also comprise following display panel and the last display panel that faces with each other and place down display panel and last display panel between liquid crystal layer.
See figures.1.and.2, display signal line is formed on down on the display panel.Display signal line comprises: many gate lines G are used to transmit signal; Many first data line Da and many second data line Db are used for transmission of data signals.Gate lines G follows the direction extension basically and is parallel to each other basically.The first data line Da and the second data line Db are substantially perpendicular to the gate line extension and are parallel to each other.
Each pixel PX comprises a pair of sub-pixel PXa and PXb.Each sub-pixel PXa and PXb comprise: switching device Qa or Qb are connected to the first or second data line Da or Db and a gate lines G; Liquid crystal capacitor Clca or Clcb are connected to switching device Qa or Qb; Choose wantonly, holding capacitor Csta or Cstb are connected to switching device Qa or Qb.In other words, a pair of sub-pixel PXa and PXb are distributed two data line Da and Db and a gate lines G.When needs, can omit holding capacitor Csta and Cstb.
Switching device Qa among each sub-pixel PXa and the PXb or Qb can be formed in down the thin film transistor (TFT) on the display panel.Specifically, switching device Qa or Qb can be three terminal devices, comprising: control end (below, be called gate electrode), be connected to gate lines G, signal is transferred to described gate lines G; Input end (below, be called the source electrode), be connected to the first data line Da or the second data line Db; Output terminal (below, be called drain electrode), be connected to liquid crystal capacitor Clca or Clcb and holding capacitor Csta or Cstb.
First pixel electrode Pa under liquid crystal capacitor Clca or Clcb utilize in the display panel or the common electrode in the second pixel electrode Pb and the last display panel are as two terminals.Liquid crystal layer between the first pixel electrode Pa or the second pixel electrode Pb and the common electrode is as dielectric.The first pixel electrode Pa and the second pixel electrode Pb are connected respectively to switching device Qa and Qb.Common electrode is formed on the front surface of display panel, and common-battery presses Vcom to be applied on the common electrode.Selectively, common electrode can be formed on down on the display panel.In this case, at least one among the first pixel electrode Pa and the second pixel electrode Pb and common electrode can be linearity or bar shaped.
Holding capacitor Csta and Cstb replenish liquid crystal capacitor Clca and Clcb.Each holding capacitor Csta and Cstb can be made of storage distribution and one of the first pixel electrode Pa and second pixel electrode Pb, wherein, the first pixel electrode Pa and the second pixel electrode Pb are formed on down on the display panel, and mutually stacked and have insulator betwixt.Predetermined voltage (pressing Vcom as common-battery) is applied to the storage distribution.Each holding capacitor Csta and Cstb can utilize insulator to form by last gate line with about the first pixel electrode Pa or the second pixel electrode Pb of last gate line as medium.
Each pixel PX can show a kind of (spatial division) in the three primary colors, perhaps selectively, can be in different time showing three primary colors (time division), trichromatic space-time and can produce the desired color that can be identified.Three primary colors can be redness (R), green (G) and blue (B).As the example of spatial division, each pixel PX can comprise the color filter of a kind of color in the expression three primary colors in the zone of last display panel.In addition, color filter can be formed on down on the first pixel electrode Pa and the second pixel electrode Pb of display panel, perhaps is formed on down the first pixel electrode Pa and the second pixel electrode Pb below of display panel.
Gate drivers is connected to gate lines G, and signal (that is, gate-on voltage Von or grid cut-off voltage Voff) is transferred to gate lines G.
Grayscale voltage generator can produce two groups of grayscale voltages (or benchmark grayscale voltage) that will be transferred to pixel, and the gray scale voltage group that produces is applied to data driver.In other words, two groups of grayscale voltages can be applied to individually the every pair of sub-pixel that forms each pixel.Yet, the invention is not restricted to this.Grayscale voltage generator can only produce one group of grayscale voltage.
Data driver is connected to every among a pair of first data line Da and the second data line Db.Data driver is applied to a pair of sub-pixel Pa that forms each pixel PX and any one among the Pb by the first data line Da with data voltage, by the second data line Db different data voltages is applied to another of sub-pixel Pa and Pb.
Gate drivers or data driver can be directly installed on the liquid crystal panel assembly with the form of a plurality of drive integrated circults (IC) chip, perhaps can be installed on the flexible printed circuit film and invest the liquid crystal panel assembly with the form of carrier band encapsulation.In addition, gate drivers or data driver can be integrated on the liquid crystal panel assembly together with display signal line (that is, the gate lines G and the first data line Da and the second data line Db) and switching device Qa and Qb (that is thin film transistor (TFT)).
The operation of signal controller control gate driver and data driver.
Return with reference to Fig. 1, each pixel PX comprises two switching device Qa and Qb, and the first pixel electrode Pa and the second pixel electrode Pb are connected respectively to switching device Qa and Qb.High relatively data voltage can be applied to the first pixel electrode Pa, low relatively data voltage can be applied to the second pixel electrode Pb.Below, high data voltage or low data voltage are respectively referred to as big pressure reduction or the small pressure difference between common-battery pressure and the data voltage.In addition, by the first data line Da pixel that data voltage is applied to the first pixel electrode Pa is known as A type pixel therein, by the second data line Db pixel that data voltage is applied to the second pixel electrode Pb is known as the Type B pixel therein.
As shown in Figure 1, A type pixel and Type B pixel can alternately be arranged along horizontal direction and vertical direction, to prevent seeing horizontal image or vertical image on LCD.
For all pixels, can data voltage be applied to the first pixel electrode Pa by the first data line Da.That is, pel array can only be made of A type pixel.In this case, if drive LCD by the row counter-rotating, then can see the vertical image that moves with respect to the test pattern along continuous straight runs on LCD, wherein, the every frame along continuous straight runs of described test pattern moves a pixel.
In addition,, can data voltage be applied to the first pixel electrode Pa, and, can data voltage be applied to the first pixel electrode Pa by the second data line Db for another row pixel by the first data line Da for one-row pixels.That is, alternately arrange A type pixel column and Type B pixel column.This layout prevents the vertical image of seeing that on LCD aforesaid along continuous straight runs moves.The first pixel electrode Pa is connected to every among the first data line Da and the second data line Db.Like this, because every coupling capacitance among the first pixel electrode Pa and the first data line Da and the second data line Db is that A type pixel or Type B pixel change according to pixel, so can see horizontal image.
Alternately arrange vertical image or the horizontal image that A type pixel and Type B pixel (as in LCD shown in Figure 1) can avoid aforesaid along continuous straight runs to move by along continuous straight runs and vertical direction.If operate the LCD with this layout with low grayscale voltage, then in fact LCD is driven by the first pixel electrode Pa that is applied with high relatively voltage.Therefore, for in A type pixel and the Type B pixel each, if the difference between the coupling capacitance of the coupling capacitance of the first pixel electrode Pa and the first data line Da and the first pixel electrode Pa and the second data line Db reduces, then can prevent the deterioration of the display quality of the LCD that causes owing to crosstalking.
Below, describe LCD in detail with reference to Fig. 3, Fig. 4, Fig. 5 and Fig. 6 according to exemplary embodiment of the present invention.According to the LCD of present embodiment comprise the last display panel of display panel, the display panel that faces down down and place down display panel and last display panel between liquid crystal layer.
Now, describe the following display panel of LCD in detail with reference to Fig. 3.Fig. 3 is the layout that comprises the following display panel of the A type pixel shown in Fig. 1.
With reference to Fig. 3, gate line 22 and storage distribution 28 are positioned on the dielectric base, and described dielectric base can be formed by for example clear glass.
Gate line 22 common along continuous straight runs extend and the transmission signal.Gate line 22 is connected to each pixel by row.Gate line 22 comprises a pair of first outstanding gate electrode 26a and the second outstanding gate electrode 26b.The gate line 22 and the first outstanding gate electrode 26a and the second outstanding gate electrode 26b are called gate wirings.
Storage distribution 28 common along continuous straight runs extend and form holding capacitor with pixel electrode 82.In the present embodiment, the center of the storage distribution 28 and the first pixel electrode 82a is stacked.Yet the present invention is not limited to this.The shape and the layout of storage distribution 28 can change.
Gate wirings and storage distribution 28 can be that metal (as aluminium and aluminium alloy), silver (Ag) are that metal (as silver and silver alloy), copper (Cu) are that metal (as copper and copper alloy), molybdenum (Mo) are that metal (as molybdenum and molybdenum alloy), chromium (Cr), titanium (Ti) or tantalum (Ta) form by aluminium (Al).
In addition, gate wirings can have the multimembrane structure that is made of the different two-layer conducting film (not shown) of physical property with storage distribution 28.One deck in the two-layer conducting film can be formed by the metal (is that metal or copper are metal as aluminum-based metal, silver) of low-resistivity, with signal delay that reduces gate wirings and storage distribution 28 or the pressure drop that reduces gate wirings and store distribution 28.Another tunic in the conducting film can be formed by different materials, specifically, can be formed by the material (is metal, chromium, titanium or tantalum as molybdenum) that has a good contact performance with tin indium oxide (ITO) and indium zinc oxide (IZO).The example of multimembrane structure comprises chromium film and last aluminium film and following aluminium film and last molybdenum film down.Yet the present invention is not limited to this.Gate wirings can be formed by different metals and conductor with storage distribution 28.
The gate insulating film (not shown) can be positioned on gate line 22 and the storage distribution 28, and wherein, gate insulating film can be formed by silicon nitride (SiNx).
A pair of semiconductor layer 40a and 40b can be positioned on the gate insulating film, and wherein, described semiconductor layer 40a and 40b can be formed by amorphous silicon hydride or polysilicon.Semiconductor layer 40a can have different shapes with 40b.For example, semiconductor layer 40a and 40b can be island or can form linearly.In the present embodiment, semiconductor layer 40a and 40b are island.
The ohmic contact layer (not shown) can be positioned on semiconductor layer 40a and 40b every layer, and wherein, ohmic contact layer can be by such as forming with the n+ amorphous silicon hydride of n-type doping impurity or the material of silicide with high concentration.That is, a pair of ohmic contact layer can be formed on semiconductor layer 40a and the 40b.
The a pair of first data line 62a and the second data line 62b and a pair of first drain electrode 66a and the second drain electrode 66b corresponding with the first data line 62a and the second data line 62b are formed on ohmic contact layer and the gate insulating film.
The first data line 62a and the second data line 62b vertically extend usually, and intersect with gate line 22 and storage distribution 28, and the first data line 62a and the second data line 62b are transferred to data voltage gate line 22 and store distribution 28.The first source electrode 65a and the second source electrode 65b be respectively from the first data line 62a and the second data line 62b branch, and extend to the first drain electrode 66a and the second drain electrode 66b respectively.As shown in Figure 3, pixel is divided into a pair of sub-pixel, and the first data line 62a is data signal transmission in the described a pair of sub-pixel, and the second data line 62b is with another data signal transmission another in the described a pair of sub-pixel.
The first data line 62a and the second data line 62b, the first source electrode 65a and the second source electrode 65b and the first drain electrode 66a and the second drain electrode 66b are known as data wiring.
Data wiring can be that metal or refractory metal (as tantalum and titanium) form by chromium, molybdenum.In addition, data wiring can have the multimembrane structure (not shown) that is made of down film and last film, and wherein, described film is down formed by refractory metal, and the described film of going up is formed by the material of low-resistivity and is positioned at down on the film.The example of multimembrane structure comprises chromium film and last aluminium film and following aluminium film and last molybdenum film down.Selectively, the multimembrane structure can be and has the molybdenum film-the trilamellar membrane structure of aluminium film-molybdenum film.
The first source electrode 65a and the second source electrode 65b's is stacked with semiconductor layer 40a and 40b respectively to small part.In addition, the first drain electrode 66a and the second drain electrode 66b respectively with respect to gate electrode 26a and 26b towards the first source electrode 65a and the second source electrode 65b, and the first drain electrode 66a and the second drain electrode 66b's is stacked with semiconductor layer 40a and 40b respectively to small part.Above-mentioned ohmic contact layer can be arranged between semiconductor layer 40a and 40b and the first source electrode 65a and the second source electrode 65b and the first data line 62a and the second data line 62b, wherein, semiconductor layer 40a and 40b are positioned at the ohmic contact layer below, and the first source electrode 65a and the second source electrode 65b and the first data line 62a and the second data line 62b are positioned at the top of ohmic contact layer.Ohmic contact layer reduces contact resistance.
The passivation layer (not shown) can be formed on the expose portion of data wiring and semiconductor layer 40a and 40b.Passivation layer can be by inorganic material (as silicon nitride or monox), have the organic material of photosensitivity and good planarization performance or low-k (low-k dielectric) material that forms by plasma enhanced chemical vapor deposition (PECVD) (as α-Si:C:O or α-Si:O:F) form.Passivation layer can be made of following inorganic layer and last organic layer, thereby protects the expose portion of semiconductor layer 40a and 40b when utilizing the good characteristic of organic layer.
The first pixel electrode 82a and the second pixel electrode 82b can be formed on the passivation layer.The first pixel electrode 82a and the second pixel electrode 82b are connected to the first drain electrode 66a and the second drain electrode 66b by the first contact hole 76a and the second contact hole 76b respectively, and the first pixel electrode 82a and the second pixel electrode 82b are arranged in pixel region.The first pixel electrode 82a and the second pixel electrode 82b can be formed by transparent conductor (as ITO or IZO), perhaps can be formed by reflection conductor (as aluminium).
As mentioned above, the first pixel electrode 82a and the second pixel electrode 82b are connected to the first drain electrode 66a and the second drain electrode 66b by the first contact hole 76a and the second contact hole 76b respectively.Therefore, can supply from the different data voltage of the first drain electrode 66a with the second pixel electrode 82b the first pixel electrode 82a with the second drain electrode 66b.
The first pixel electrode 82a and the common electrode of the second pixel electrode 82b in last display panel that are applied with different data voltages produce electric field, thereby determine the orientation of the liquid crystal molecule between the first pixel electrode 82a and the second pixel electrode 82b and the common electrode.
Among pixel electrode 82a and the 82b each and common electrode form liquid crystal capacitor Clca or Clcb, therefore, even after thin film transistor (TFT) (that is, switching device Qa or Qb) ends, also can keep the voltage that is applied to it.Holding capacitor Csta and Cstb can be parallel-connected to liquid crystal capacitor Clca and Clcb, keep ability to strengthen voltage.Each of holding capacitor Csta and Cstb formed by storage distribution 28 and the first pixel electrode 82a or second the stacked of pixel electrode 82b, perhaps formed by the storage distribution 28 and second the stacked of drain electrode 66b that be connected to the first drain electrode 66a of the first pixel electrode 82a or be connected to the second pixel electrode 82b.
A pixel electrode 82 comprises the first pixel electrode 82a and the second pixel electrode 82b, and wherein, the first pixel electrode 82a and the second pixel electrode 82b are bonded with each other and have predetermined gap 83 between them.The first pixel electrode 82a is arranged in the zone of pixel, and shape is essentially " V " shape of lying on one's side, and the second pixel electrode 82b is arranged in the remaining area of this pixel.
Gap 83 between the first pixel electrode 82a and the second pixel electrode 82b comprises the sloping portion and the vertical part that is connected sloping portion with respect to the angle of 22 one-tenth about 45 degree of gate line or-45 degree.The angle of part (domain partition portion) 84 (as otch or outstanding) with respect to 22 one-tenth about 45 degree of gate line or-45 degree divided on the farmland, and is formed among the second pixel electrode 82b.
Vow the direction of being arranged according to the main orientation that when liquid crystal layer applies electric field, is included in liquid crystal molecule in the liquid crystal layer, the viewing area of pixel electrode 82 is divided into a plurality of farmlands.The farmland is divided part 84 pixel electrode 82 (for example, the second pixel electrode 82b) is divided into a plurality of farmlands.The farmland is represented to have owing to the electric field that forms between pixel electrode 82 and common electrode 90 (see figure 5)s causes its orientation and is vowed the zone of the molecule that tilts together along specific direction.
High relatively data voltage is applied to the first pixel electrode 82a through the first data line 62a, and low relatively data voltage is applied to the second pixel electrode 82b through the second data line 62b.Therefore, can improve the side observability of LCD.
The alignment films (not shown) can make aligned liquid crystal layer, alignment films can be coated on the first pixel electrode 82a and the second pixel electrode 82b and the passivation layer.
If LCD works under low grayscale voltage, then in fact LCD is driven by the first pixel electrode 82a that is applied in high relatively voltage.Therefore, if the difference between the coupling capacitance of the coupling capacitance of the first pixel electrode 82a and the first data line 62a and the first pixel electrode 82a and the second data line 62b reduces, then can prevent owing to the crosstalk deterioration of display quality of the LCD that causes of the first data line 62a and the second data line 62b independent.
Below, describe the coupling capacitance between each of the first pixel electrode 82a and the first data line 62a and the second data line 62b in detail with reference to Fig. 3 and Fig. 4.Fig. 4 is the synoptic diagram that the annexation between the first pixel electrode 82a shown in Fig. 3 and the first data line 62a and the second data line 62b is shown.
With reference to Fig. 3 and Fig. 4, the shape of the first pixel electrode 82a is essentially " V " shape of lying on one's side.Two coupling condenser C1 and C2 are formed on two zones that the first pixel electrode 82a is adjacent to the first data line 62a.In addition, another coupling condenser C3 is formed on the first pixel electrode 82a and is adjacent in the zone of the second data line 62b.In other words, the first pixel electrode 82a has the shape of " V " word, and the bottom of " V " word is adjacent to the second data line 62b.
The first drain electrode 66a and the second drain electrode 66b lay respectively on the first grid electrode 26a and the second gate electrode 26b.The first drain electrode coupling part 67a and the second drain electrode coupling part 67b extend to the first contact hole 76a and the second contact hole 76b from the first drain electrode 66a and the second drain electrode 66b respectively.The first drain electrode coupling part 67a and the second drain electrode coupling part 67b can be formed by the material identical materials with data wiring and be formed on on one deck with data wiring basically.
The first drain electrode coupling part 67a and the second drain electrode coupling part 67b electrically insulated from one another, and formation is the band of rectangle substantially together.Specifically, the first drain electrode coupling part 67a comprises: the first pattern 67_1, vertically extend and the first drain electrode 66a on the semiconductor layer 40a be connected with the first contact hole 76a; The second pattern 67_2 extends from the first pattern 67_1 along continuous straight runs; The 3rd pattern 67_3 extends and is parallel to the second data line 62b from the second pattern 67_2.The second drain electrode coupling part 67b along continuous straight runs extends and the second drain electrode 66b on the semiconductor layer 40b is connected with the second contact hole 76b.
Coupling condenser C1 and C2 are formed between the first pixel electrode 82a and the first data line 62a, and coupling condenser C3 is formed between the first pixel electrode 82a and the second data line 62b.The zone that the first pixel electrode 82a is adjacent to the second data line 62b is wider than in the zone that the first pixel electrode 82a is adjacent to the first data line 62a relatively.For example, the first pixel electrode 82a zone that is adjacent to the first data line 62a and the first pixel electrode 82a be adjacent to the second data line 62b the ratio in zone greater than 1 and be less than or equal to 2.5.In addition, storage distribution 28 is formed on the below that the first pixel electrode 82a is adjacent to the zone of the second data line 62b, and hinders coupling.Therefore, in the coupling capacitance of coupling condenser C1 that forms between the first pixel electrode 82a and the first data line 62a and C2 relatively greater than the coupling capacitance of the coupling condenser C3 that between the first pixel electrode 82a and the second data line 62b, forms.
Therefore, the 3rd pattern 67_3 that arranges abreast with the second data line 62b is formed among the first drain electrode coupling part 67a, to replenish the coupling capacitance of the first pixel electrode 82a and the second data line 62b.The 3rd pattern 67_3 and the second data line 62b form coupling condenser Ca.This makes the capacitance difference between coupling condenser C1 and C2 and coupling condenser C3 and the Ca to reduce, wherein, coupling condenser C1 and C2 are formed between the first pixel electrode 82a and the first data line 62a, and coupling condenser C3 and Ca are formed between the first pixel electrode 82a and the second data line 62b.The coupling capacitance that length that can be by changing the 3rd pattern 67_3 and the distance between the 3rd pattern 67_3 and the second data line 62b are regulated coupling condenser Ca.
Below, with reference to Fig. 5 and Fig. 6 display panel and LCD are described.Fig. 5 is the layout that is connected to the last display panel of the following display panel shown in Fig. 3.Fig. 6 is the layout that comprises the LCD of the last display panel shown in the following display panel shown in Fig. 3 and Fig. 5.
Be used to prevent that black matrix 94, RGB color filter 96 and common electrode 90 that light leaks are positioned at the dielectric base (not shown), wherein, common electrode 90 can be formed by transparent conductive material (as ITO or IZO), and dielectric base can be formed by clear glass.Here, black matrix 94 can be arranged in the zone that is limited by gate line 22, the first data line 62a, the second data line 62b and thin film transistor (TFT).In addition, black matrix 94 can have different shapes, to prevent that in the zone around the first pixel electrode 82a and the second pixel electrode 82b and the thin film transistor (TFT) light from leaking.
Common electrode 90 is towards the first pixel electrode 82a and the second pixel electrode 82b, and comprises that the farmland divides part 92, and as otch or outstanding, wherein, part 92 is divided with respect to 22 one-tenths about 45 degree of gate line or-45 angles of spending in described farmland.Gap 83 between sloping portion, the first pixel electrode 82a and the second pixel electrode 82b of farmland division part 92 and the farmland among the second pixel electrode 82b are divided part 84 and are alternately arranged.
Can on common electrode 90, apply the alignment films (not shown) of arranging liquid crystal molecule.
If the display panel up and down that will construct as mentioned above aligns and they is interconnected, then liquid crystal material can be injected between the panel, thus the basic structure of formation LCD.When display panel alignd up and down, the farmland division part 92 that part 84 and common electrode 90 are divided in the gap 83 between the first pixel electrode 82a and the second pixel electrode 82b, the farmland among the second pixel electrode 82b was divided into a plurality of farmlands with pixel region.Therefore, can increase the standard visual angle of LCD.
Below, the LCD of another exemplary embodiment according to the present invention is described with reference to Fig. 7 and Fig. 8.Fig. 7 is the layout that comprises the following display panel of the Type B pixel among Fig. 1.Fig. 8 is the synoptic diagram that the annexation between pixel electrode shown in Fig. 7 and the data line is shown.For convenience of description, represent with identical label with the element that the element shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6 has an identical function.Therefore, with the detailed description of omitting them.Except following feature, have and the essentially identical structure of structure according to the LCD of a last embodiment according to the LCD of present embodiment.
As shown in Figure 7 and Figure 8, the first drain electrode 66a contacts the second pixel electrode 82b by the first drain electrode coupling part 167a with the second contact hole 76b, and the second drain electrode 66b contacts the first pixel electrode 82a by the second drain electrode coupling part 167b with the first contact hole 76a.The first drain electrode coupling part 167a and the second drain electrode coupling part 167b and data wiring (62a, 62b, 65a, 65b, 66a and 66b) are formed by essentially identical material on one deck.
The first drain electrode coupling part 167a and the second drain electrode coupling part 167b electrically insulated from one another, and formation is the band of rectangle substantially together.Specifically, the first drain electrode coupling part 167a comprises: the first pattern 167_4, along continuous straight runs extend and the first drain electrode 66a on the semiconductor layer 40a are connected with the second contact hole 76b; The second pattern 167_1 vertically extends from the first drain electrode 66a.The second drain electrode coupling part 167b comprises: the first pattern 167_3, the second drain electrode 66b from the semiconductor layer 40b vertically extend and are parallel to the second data line 62b and arrange; The second pattern 167_2, the along continuous straight runs extension also connects the first pattern 167_3 and the first contact hole 76a.
Coupling condenser C1 and C2 are formed between the first pixel electrode 82a and the first data line 62a, and coupling condenser C3 is formed between the first pixel electrode 82a and the second data line 62b.The zone that the first pixel electrode 82a is adjacent to the second data line 62b is wider than in the zone that the first pixel electrode 82a is adjacent to the first data line 62a relatively.For example, the first pixel electrode 82a zone that is adjacent to the first data line 62a and the first pixel electrode 82a be adjacent to the second data line 62b the ratio in zone greater than 1 and be less than or equal to 2.5.In addition, storage distribution 28 is formed on the below that the first pixel electrode 82a is adjacent to the zone of the second data line 62b, and hinders coupling.Therefore, in the coupling capacitance of coupling condenser C1 that forms between the first pixel electrode 82a and the first data line 62a and C2 relatively greater than the coupling capacitance of the coupling condenser C3 that between the first pixel electrode 82a and the second data line 62b, forms.
Therefore, the first pattern 167_3 that arranges abreast with the second data line 62b is formed among the second drain electrode coupling part 167b, to replenish the coupling capacitance between the first pixel electrode 82a and the second data line 62b.The first pattern 167_3 and the second data line 62b form coupling condenser Cb.This will reduce the coupling condenser C1 of win the pixel electrode 82a and the first data line 62a and C2 and the coupling condenser C3 of the first pixel electrode 82a and the second data line 62b and the capacitance difference between the Cb.The coupling capacitance that length that can be by changing the first pattern 167_3 and the distance between the first pattern 167_3 and the second data line 62b are regulated coupling condenser Cb.
Below, with reference to Fig. 9 display performance according to the LCD of the embodiment of the invention is described.
Fig. 9 is illustrated under the situation of grey scale transformation, the curve map of the luminance difference between the Type B pixel shown in the A type pixel shown in Fig. 1 and Fig. 3 and Fig. 1 and Fig. 7.In the curve map of Fig. 9, Q represents the luminance difference data when using the aforesaid drain electrode coupling part that forms together substantially to the band of rectangle in an embodiment of the present invention.Luminance difference data when P represents not use the drain electrode coupling part.
As shown in Figure 9, utilize the drain electrode coupling part, can reduce poor between the coupling capacitance of a data line in the pair of data lines of pixel electrode and described pixel electrode both sides and described pixel electrode and described another the coupling capacitance in the data line.Therefore, the deterioration of the display quality of the LCD that causes owing to crosstalking can be prevented, and the luminance difference between A type pixel and the Type B pixel can be reduced.Therefore, the LCD according to exemplary embodiment of the present invention can keep basic brightness uniformly on the whole.
In aforesaid exemplary embodiment of the present invention, when using the pixel electrode of V-arrangement, utilize that to form substantially together be the drain electrode coupling part of the band of rectangle, can reduce pixel electrode and be adjacent to the poor of coupling capacitance between the pair of data lines of this pixel electrode.Difference between the coupling capacitance stems from pixel electrode poor respectively and between the coupling regime of data line.Yet the present invention is not limited to the pixel electrode of V-arrangement, and can be applicable to adjacent data line between have the pixel electrode of the different shape of different coupling regimes.
As mentioned above, LCD according to the present invention is applied to a pair of sub-pixel that forms pixel together with different data voltages, thereby improves the side observability.
In addition, utilize the drain electrode coupling part, LCD regulates the coupling capacitance between pixel electrode and the data line, and wherein, the drain electrode coupling part connects drain electrode and pixel electrode and is parallel to data line to be arranged.Therefore, LCD can prevent the deterioration of the display quality that causes owing to crosstalking.
What it will be apparent to those skilled in the art is under the situation that does not break away from the spirit or scope of the present invention, can make various modifications and distortion to the present invention.Therefore, as long as modification of the present invention and distortion are fallen in claim and the equivalent institute restricted portion thereof, the invention is intended to cover these modifications and distortion.

Claims (22)

1. LCD comprises:
First dielectric base;
Gate line is positioned on first dielectric base and along first direction and extends;
First data line and second data line, with gate line insulation and intersect, first data line and second data line are separated mutually and are extended along second direction;
The first film transistor is connected to the gate line and first data line;
Second thin film transistor (TFT) is connected to the gate line and second data line;
First pixel electrode and second pixel electrode are connected respectively to the first film transistor and second thin film transistor (TFT);
The first drain electrode coupling part and the second drain electrode coupling part are connected to first pixel electrode and second pixel electrode with the first film transistor and second thin film transistor (TFT) respectively,
Wherein, the first drain electrode coupling part and the second drain electrode coupling part electrically insulated from one another, and have the part that is parallel to first data line and second data line.
2. LCD according to claim 1, wherein, first pixel electrode is a V-arrangement substantially, and is arranged in the zone of pixel, second pixel electrode is arranged in the remaining area of described pixel.
3. LCD according to claim 2 wherein, is arranged first pixel electrode by this way, that is, the top of V-arrangement is adjacent to first data line in two zones, and the bottom of V-arrangement is adjacent to second data line in a zone.
4. LCD according to claim 3, wherein, the first drain electrode coupling part is parallel to second data line to be arranged, thereby forms coupling condenser between the first drain electrode coupling part and second data line.
5. LCD according to claim 4, wherein, the first drain electrode coupling part comprises:
First pattern connects the first film transistor and first pixel electrode, and extends along second direction;
Second pattern extends along first direction from first pattern;
The 3rd pattern extends along second direction from second pattern, and is parallel to second data line layout.
6. LCD according to claim 4 also comprises:
Second dielectric base is towards first dielectric base;
Common electrode is positioned on second dielectric base.
7. LCD according to claim 3, wherein, extend along first direction the second drain electrode coupling part.
8. LCD according to claim 2 wherein, is arranged first pixel electrode by this way, that is, the bottom of V-arrangement is adjacent to first data line in a zone, and the top of V-arrangement is adjacent to second data line in two zones.
9. LCD according to claim 8, wherein, the first drain electrode coupling part is parallel to first data line to be arranged, thereby forms coupling condenser between the first drain electrode coupling part and first data line.
10. LCD according to claim 9, wherein, the first drain electrode coupling part comprises:
First pattern extends along second direction from the first film transistor, and is parallel to first data line layout;
Second pattern connects first pattern and first pixel electrode, and extends along first direction.
11. LCD according to claim 8, wherein, the second drain electrode coupling part comprises:
First pattern connects second thin film transistor (TFT) and second pixel electrode, and extends along first direction;
Second pattern extends along second direction from second thin film transistor (TFT).
12. LCD according to claim 2, wherein, common-battery is pressed and is applied to difference between first data voltage of first pixel electrode and presses and be applied to poor between second data voltage of second pixel electrode greater than common-battery.
13. LCD according to claim 2 also comprises the storage distribution, the storage distribution is in the bottom of V and first pixel electrode is stacked and extend along first direction.
14. LCD according to claim 1, wherein, the first drain electrode coupling part and the second drain electrode coupling part are formed by the essentially identical material of material with first data line and second data line, and are formed on on one deck with first data line and second data line.
15. a LCD comprises:
First dielectric base;
Gate line is positioned on first dielectric base and along first direction and extends;
First data line and second data line, with gate line insulation and intersect, first data line and second data line are separated mutually and are extended along second direction;
A plurality of pixels, the intersection by gate line and data line limits, and each pixel comprises:
The first film transistor is connected to the gate line and first data line;
Second thin film transistor (TFT) is connected to the gate line and second data line;
First pixel electrode is essentially V-arrangement in the zone of pixel, wherein, the bottom of V-arrangement is adjacent to second data line;
Second pixel electrode is arranged in the remaining area of described pixel;
The drain electrode coupling part has the part that is parallel to first data line and second data line, and the first film transistor or second thin film transistor (TFT) are connected to first pixel electrode or second pixel electrode,
Wherein, the pixel of the first kind comprises first pixel electrode that is connected to first data line, the pixel of second type comprises first pixel electrode that is connected to second data line, and the pixel of the pixel of the first kind and second type is alternately arranged along first direction and second direction.
16. LCD according to claim 15, wherein, the drain electrode coupling part of the pixel in the pixel of the first kind comprises:
The first drain electrode coupling part connects the first film transistor and first pixel electrode;
The second drain electrode coupling part connects second thin film transistor (TFT) and second pixel electrode,
Wherein, the first drain electrode coupling part is parallel to second data line to be arranged, thereby forms coupling condenser between the first drain electrode coupling part and second data line.
17. LCD according to claim 16, wherein, the first drain electrode coupling part comprises:
First pattern connects the first film transistor and first pixel electrode, and extends along second direction;
Second pattern extends along first direction from first pattern;
The 3rd pattern extends along second direction from second pattern, and is parallel to second data line layout.
18. LCD according to claim 17 also comprises:
Second dielectric base is towards first dielectric base;
Common electrode is positioned on second dielectric base.
19. LCD according to claim 15, wherein, the drain electrode coupling part of the pixel in the pixel of second type comprises:
The first drain electrode coupling part connects the first film transistor and second pixel electrode;
The second drain electrode coupling part connects second thin film transistor (TFT) and first pixel electrode,
Wherein, the second drain electrode coupling part is parallel to second data line to be arranged, thereby forms coupling condenser between the second drain electrode coupling part and second data line.
20. LCD according to claim 19, wherein, the second drain electrode coupling part comprises:
First pattern extends along second direction from second thin film transistor (TFT), and is parallel to second data line layout;
Second pattern connects first pattern and first pixel electrode, and extends along first direction.
21. LCD according to claim 15 also comprises the storage distribution, the storage distribution is in the bottom of V and first pixel electrode is stacked and extend along first direction.
22. LCD according to claim 15, wherein, common-battery is pressed and is applied to difference between first data voltage of first pixel electrode and presses and be applied to poor between second data voltage of second pixel electrode greater than common-battery.
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CN101122722B (en) 2011-11-16

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